NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

6GJ7
Medium-Mu Triode - Sharp-Cutoff pentode

EIA Base & Outline

EIA Base: 9QA

Substitute Data

Preferred Substitutes ......................... 6GK7
Substitutes ................................... 6HB7 6HD7 6HJ7
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used as combined oscillator and mixer tube in color and BW TV receivers utilizing and if in the order of 40 MHz. Requires miniature 9-contact socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-6 1/2
Base Type ..................................... Miniature Button 9-Pin
Maximum Overall Height ........................ 2.000 In.
Maximum Seated Height ......................... 1.750 In.
Maximum Diameter .............................. 0.875 In.
EIA Base ...................................... 9QA

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.41 A

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 275 V
Grid No. 2 Voltage ............................ 275 V
Plate Dissipation ............................. 2.4 W
Grid No. 2 Dissipation ........................ 0.55 W

Triode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 140 V
Plate Dissipation ............................. 1.8 W

Characteristics and Typical Operation

Triode Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 100 V
Grid No. 1 Voltage ............................ -3 V
Amplification Factor .......................... 20
Transconductance .............................. 9000 µMho
Plate Current ................................. 15 mA

Pentode Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 170 V
Grid No. 2 Voltage ............................ 120 V
Grid No. 1 Voltage ............................ -1.2 V
Plate Resistance (approx) ..................... 350K Ω
Transconductance .............................. 1100 µMho
Plate Current ................................. 10 mA
Grid No. 2 Current ............................ 3 mA

A horizontal ribbon.

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A horizontal ribbon.

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Wed, 29 Mar 2023 02:05:21 -0700